Combination post-drill and portable hand-drill.



0. A. OSMONDSON.

COMBINATION POST D RILL AND PORTABLE HAND DRiLL.

APPLICATION FILED :uuzzs. 19 11.

3 SHEETS-SHEET 2.

1,296,691. Patented Mar. 11,1919...

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COMBLNATION POST DRILL AND PORTABLE HAND DRILL.

APPLICATION FILED JUNEZS, 1911.

1,296,691. Patented Mar. 11,1919.

3 SHEETS-SHEET 3.

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To all whom itmizy concern;-

osmonbeposttotrnsoiv; or snL'INA, KAfNsAs;

nommwrIbN rosr-nmm. AND PORTABLE HAND-DRILL. 1

- Specification of Iie'tters Patent. t-ent ma 11, 1919,

Application filed June 1917. Seria1Non176 j862;

Be it knoWnt-hat: I, OSMONJD A. OSMOND- soN, a citizenof the UnitedStateaeresiding at Selina, i11 the county of Sel'ineandTSthte 3 of Kansas, have inventeda new and useful Combination Post-Drilland'Portable- Hand- Drill, of Which-the tollowingis aspeoification. 7

a which at the will of-an' ionei'atomfmay be used as a post driller a' bench drilhor'as a hand drill.-

The invention ,:aims,-specifical1y,; to provide novel .nieans whereby the ends: abo ve mentioned may, be carried out, and, further, to provide novelmeans tordriving iand slipportinj'g'the various movable partsof the structure.

It is Within the province-offthedisclbsure to improve generallyqand' to enhance the 7 utility of devi'ces of that type towhich' the present; invention appertains.

With-the above andoth'er objects in- View which will appear as the deseription prooeeds', the inventionresides in the combination and-errangement pf parts'and in the details of constructionhei'einafter described and 'claimed;- it being" understood that changes in theprecise embodiment or theiinventi-onherein disclosed canzbe' rnade 1 Within the scope of Whatis 'ictainiedj.WithOut-departing from the spirit of the-invention;

show nimm I y, Y P p n of the 'drill slhew i the aoooinnanyin'g drawings:

Figure 1 shows in trout elevation; one form of a drill embodying the present improvements; parts appearing insectionj Fig. '2 is aside elevation of Fig; 1,- the supportingpost appearing: in

- section;

FigLl-is' a section -taken onf the line H I of Fig. 3;

Fig. 5 is a section taken on -the' line 55 of Fig.1;

. Fig. 6 isaesectioniraken through the-drill shaft and meeting parts;

,aFig-HT isa? side elevation showing a'modifiedionni of the invention;

': Fig. 8 Y is an elevation wherein the" structure shown-inFig-V .isviewed at .right a-n-Z gl-es to the showing 'of Fig. 7

Fig-J9 isa cross .seotiontaken through the drill shaft; and o the .n 'i-eans" whereby a the drill shaft is .zoperaitively .oonneeted with.

the driving pinion;

Itis the object of this in ventibn to Provide the strnetiire 1 Fig.- lO-is a-seetion taken approximately 7' on the line 10' 10- of Fig. v9.

Referring" to that form of the invention Which is shown :in'Figsi 1' to 6 both inclusive,

the numeral 1 denotes a post. An upper .bracket 2 is *securedfto: the post '1. The bracket 2" includes a base 3 andaan outstanding armqe The base 3501f thebracket' is attacheditoithe post-'1 by means'of securing elements'b. In-the end of thearm 4 there is-fashioned a slot10.' The arrn 4isprovided withignotohes ti which open i'ntothe slot 10. As shovvnin' Fig. Bethe walls of the notches G/cDnVerge-at 7, as they extend downwardly.

A lowerbraeket 8 iszattachedto the post 1.

The bratket '8 includesiafbase Wand" an'ontstandig :arinl li Securing elements12 connect the-base 9 of the bracket 8 withthefpost 1. In its end, the arm 11 has a slot 14-; The

slot 14--in?the:.arm .11 is not so-wideas is the slot-10 inthe arm 4 ofthe upper bracket.

The-arm; 11 of the lower bracket 8 carries a set screw 15. r

The invention 1 OOIlFlPIlSC-IS' a frame the term of a plate 16 including arnain or uppersocket 17 and a secondary o1" lower socket 18. Mounted the-sockets 17 and 18 is: ahar 19..- The sockets 17 and? 18' Gerry .seoiiring eIernents'QO which hold the bar 19; removably in-ijplaoe in-the socket-s; The upper socket 17" 1 has later-ally projecting lugsQl. The immeral'22-denotes a Work tablelhaving acflat-i tened' outer end 23 provided with-a slot 52 1 through which the drill; hereinafter'imen- Ftioned; is adapted to*work,yas thefdrill passes through the material. 111: its! rear "end, the

work-table, 22 provided with a longitiidianal slot 25 forming: resilient jaws Q6 supplied on their inner taces'with cooperating notches defining" an opening 27. in which thebar 19 is reoeiv ed z A: clamp screw 28 is threaded into! the endsof'the jayvs 26; It will bevobvious-that theiwork table QQlmay be adj-iristed'elong-the bar 19., and by tightening np'the screw 28, the jZaWsQ'G Will be made to grip the-bar 19, and thus'the Work table 22 may be held in any position: to which it may have been adjusted.

In order to assemble the bar 19%and v starts the mpperesoeket'zl? is fitted-into the'slo-t 10 :ofitheerm- 11, the lugs 21 on the socket 17 being received int/he notches '6 oi the arm 14. Beoa11se the Walls of these notches 6 soonverge astsh'o vn at 7 ,1 as" they. extend downwardly, and because the lugs 21 are shaped carried thereby with'thebrackets" 2 and 8,

to fit the notches, the bar 19 and parts carried thereby can not slide downwardly. The

bar 19 fits closely in the slot 14 of the arm 11 of the lower bracket 8 and is held therein by the set screw 15. Y

The frame or plate 16 is provided at its upper end with a horizontal head 29. Be

low the head 29, the plate 16 carries a bearing '30. The head 29 isconnected with the bearing 30 by means of a side arm 31 having a bearingrboss 32. A shaft 33 is journaled' :37 supported on the upper end of the bearing 30.. An innertube 38 extends through 1 the beveled pinion 37 into the upper end of the bearing 30. The inner tube is secured as shown at 39 to the beveled pinion 37. 1 Above the beveled pinion 37, the inner tube 38 is provided with opposed, longitudinally extended slots 40. The inner tube 38 may also 7 be provided with transverse oil slots 41 permitting a lubricant to find its way within the innertube. V

r. A drill shaft 42 is located within the inner tube 38. The drill shaft 42 is provided adj acent its lower end with an enlargement 43.

at 45 and carries a set screw 46 adapted to' The enlargement 43 is located within the bearing 30. Mounted on the lower end of the drill shaft 42'is a chuck 44. The chuck 44is secured'to the drill shaft 42 as shown I holda drill 47 in the chuck. A screw 48 v is mounted to rotate on the drill shaft 42 between the enlargement 43 and the chuck 44.

- The screw 48 carries a hand wheel 51. The

screW 48 is threaded into the bearing 30. A

V U-shaped stop 49 is straddled onto the plate or frame 16 near to its lower end and is held thereto by securing elements 50.- The drill I shaft 42 carries'a removable cross pin 52.

The ends of the cross pin 52 are mounted to reciprocatein the longitudinal slots 40 of the inner tube 38. The inner tube 38 is surrounded by an outer tube 53. The outer tube 53 serves to 'hold'the pin 52 in place in I 7 When the shaft 33 is rotated by means of the .drill shaft 42. A stub shaft 54 is mountedin the upperend of the inner tube 38. A securing element 55 passes through the upper ends of the tubes 38 and 53 and holds the stub shaft 54 inplace. A fly wheel 56 is threaded onto the upper end of the stub shaft 54 and may be held in place by a set screw 60.

The. work is supported 011 the table 22.

. thecrank 34, the beveled gear wheel 36,

meshing into the beveled pinion 37 rotates theinner tube 38. When'the inner tube 38 is rotated, the drill shaft 42 will be'rotated for simultaneous rotation, by means of the also, because these elements'are' connected pin 52 Since theouter tube 53 andthe stub shaft 54 are connected with the inner tube;

38 by means of the securing element 55, and

since the fly wheel 56 is attached to the stub shaft 54 by means of the set screw 60, the V fly wheel 56 will fulfil its well understood In order to feed the drill 47 downwardly, the screw 48 is rotated by means of the hand wheel 51, andwhen the screw, being threaded into the bearing 30, is rotated, the drill shaft 42, along with the drill 47, will be raised or lowered, depending on the direc tion of rotation of the wheel 51. The enlargement .43 on the one hand," and the chuck 44 on the other hand, connect the screw 48 with the drill shaft 42 for'simultaneous longitudinal movement.- It is tobe observed that in this form of the invention, the weight of the fly wheel 56 is carriedby the outer tube 53, the latter being supported I on the beveled pinion 37 which,-in its turn,

is supported on the bearing 30. The weight of the fly wheel 56, therefore, is not carried by the drill shaft 42. The outer tube 53 is journaled in the head 29, as clearly shown in the drawings.

set up for use as a post drill.

ranged as shown inFigs; 1 and 2, may be used as a benchdrill, When it is desired to use the structure as a hand drill, thebar sired, then the frame 16 may be'detached from the bar 19,.by' removin the securing elements 20 which connect t e sockets-18 In Figs. land 2, the structure is shown It will he obvlous, however, that the structure, .ar-

.100 19 is detached from the brackets -8 and 2. 7 If extreme portability and lightness are de and 17 with the bar 19. Ordinarily, whenthe structure is used as'a hand drill, the

frame'or. plate '16 and partscarried thereby I I will be detached from the bar 19, as aforej said. 7 V r V 1 In Figs. 7, 8, 9' and 10 of the drawings, a slmplified'form ofthe invention isshown. In these figures, parts hereinbefore described have been designated by numerals ,previ-" .ously used with the suflix a. In this form of the invention, the drillshaft 42 is journaled directly inthe head 29 and in the;

beveled pinion 37. The drill shaft 42 has a keyway. 57 engaged by a key 58 carried by the beveled pinion 37, and having exten sions 59 which engage the upper. and'lower surfaces of the member 37*. of the invention, an extreme downwardfeed of the drill'47 is prevented by the engagenient between the wheel '51 and the stop 49*, the same observation holding true with regard to the hand wheel 51 and thestop 49 shown in that form 'of the invention which is delineated in Figs. 1 and 2. his to be understood that the structure shown In this form in Figs. 7 and 8 is adapted to be mounted on a member like the bar 19, and to be used in connection with such parts as the brackets 8 and 2.

It will be understood that when the device is used as a post drill, the fly wheel 56 is mounted on the stub shaft 54:, the crank handle 34 being connected with the shaft 35. The parts are shown thus arranged in Fig. 1. When, however, the device is to be used as a hand drill, then, ordinarily, the handle 34 is mounted on the end of the shaft L2, the fly wheel 56 being mounted on the shaft 33*. The parts are shown thus disposed in Figs. 7 and 8.

Having thus described the invention, what is claimed, is

1. A device of the class described comprising spaced brackets having slots; a bar received in the slot of one bracket; a frame including a socket receiving the bar, the socket being received in the slot of the other bracket, the socket and said other bracket having coacting elements limiting the endwise movement of the bar with respect to the brackets; a drilling mechanismcarried by-the frame; and a work table carried by the bar and coacting with the drilling mechanism. v v

2. In a device of the class described, a frame; a rotatable element supported on the frame; an inner tube carried by the rotatable element; a drill shaft mounted to slideendwise in the inner tube; means for connecting the drill shaft and the inner tube for simultaneous rotation; means for 'actuat- '3. In a device of the class described, a

frame; a beveled pinion supported on the frame; a beveled gear wheel, meshing into the pinion; a first shaft journaled in the frame and carrying the'beveled gear wheel; 7

an inner tube journaled in the frame and connected with the pinion; a drill shaft mounted in the inner tube; a pin extended through the drill shaft, the inner tube havingva slot wherein the pin is received, to connect the drill shaft with the inner tube for simultaneous rotation; an outer tube journaled in the frame and surrounding the inner tube, the outer tube being supported on the pinion and engaging thepin to hold the same in place; a fly wheel and an actuating member; and means for connecting the fly wheel and the actuating member interchangeably with the outer tube and with the first shaft, at the will of an operator.

In testimony that I claim vthe foregoing as my own, I have hereto afliXed my signature in the presence of two witnesses.

OSMOND A. OSMONDSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

